426049531 has 2 divisors, whose sum is σ = 426049532. Its totient is φ = 426049530.

The previous prime is 426049513. The next prime is 426049537. The reversal of 426049531 is 135940624.

It is a happy number.

Together with previous prime (426049513) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-426049531 is a prime.

It is a super-2 number, since 2×426049531² = 363036405730639922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (426049537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213024765 + 213024766.

It is an arithmetic number, because the mean of its divisors is an integer number (213024766).

Almost surely, 2^426049531 is an apocalyptic number.

426049531 is a deficient number, since it is larger than the sum of its proper divisors (1).

426049531 is an equidigital number, since it uses as much as digits as its factorization.

426049531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 426049531 is about 20640.9672980701. The cubic root of 426049531 is about 752.4656811536.

The spelling of 426049531 in words is "four hundred twenty-six million, forty-nine thousand, five hundred thirty-one".